Method of ornamenting stone



April 24, 1928. l 1,667,309

E. A. CHASE METHOD OF ORNAMENTING STONE Filed April 4. 1927 6 :reim: 20 J YW/QZ/me Patented Apr. 24, 1928.

g UNITED- STATES PATENT ELROYl A. CHASE, OVF NORTIIFIELD,"\`TERMVOIVNT. i

iim'rHop` or` oRNAMENTfIive STONE.

Appiication fiiedhpriie, i927. A,seriali No. 180,799.

This inventionrelates to the provisionof are bothA substantially attained.

. My invention further' relates to improved methods, and associations of method steps, which will 4be hereinafter described and more particularly sety .forth in the [appended claims. ff M A preferred form of the invention is illustrated in the drawings, in which Fig. 1 is a plan View of a portion of the granite surface to Wliichthe r'st steps ofv my improved method have been applied;

Fig. 1fL is a ndetail sectional view, taken along the line kla-fl2L in Fig. 1;. i f

Fig. 2 is a partial plan view, illustrating the next step of my improved process;

fFig.' 2a is a sectional view, taken along the line 2a- 1 in Fig. 2; y Figs. 3, 4 and 5 are similar partial plan views, illustrating successive steps in my improved method;

Figs. 3a, 4a and 5aL are detailed sectional views, taken along the lines 3a-3, 4rL and {3a-5a, in Figs. 3, 4 and 5 respectively;

Figs. 6 and 7 are detailed sectional views, illustrating further steps of my improved method, and

Fig. 8 is a plan view showing the appearance of the com leted work.

Referring to t e drawings, I have shown a portion of a block S, to which a layer 10 of any suitable sand-resisting compound has been applied, such compound being com-` inonly formed of glue..

The desired ornamental figure is then cut orfstencilled in the compound 10 by removing the stencilled portions 11, as shown in Fig. l". A sand blast is thenv somewhat lightly applied to the surface of the block S cutting the steneilled lines slightly below the surfacehof the block, as indicated at 12 in Figs. 2 and 2".. Y

The glue or .covering compound 10 isithcn removed froml'lie portion 13, enclosed within tliestencilled outlineill, as indicated in i 3 and 3% The background ofthe design. remains covered rvwith the compound l0.` AThe operator then applies a hand tool to the exposed surface 13 of the design, 4`eutr ting the outline to any desired contour, as indicated in Figs. 4 and 4?. This hand tool operation is very muchr facilitated `by the previouscutting oftheoutlne 12`,`as"shown,

indicating the edges of the` desired figure. Itl isv desirable that the outline 12y befcut to aslight depth only, as otherwise the hand tool operation may `break 'olf the edges ofL `tl'ie'figur'es along theoutline 12,.

After the hand tool operation, the-surn .face of the figure is re-coated with'the cover-v ing compound, 'as indicated at' 14' as shown in Fig; 5g The outline of the rfigure'is then restencilled, includingthe veins'o'f the leaf as indicated atlf 'orothei' similar details. The sand' blast is then,"appliedtoI cut'the stencilled outlines',las indicated at V16 and 17 in Figo. V'

The 'compoundYik is i then removed from* the.backgroundportion ofthe surface, as indicated 1211117' in Fig. 6, landiithe "background is then cut down by they sandv blast, as indicated at` 207in"Fig` j i IfJ la plain background is i' desired, this operation of Fig. 7 is continued to cut the background to a greater depth. If, liowever, a variegated background is preferred, I insert a screen of suitable design in front of the stone, after the work has reached the stage illustrated in Fig. 7. The sand blast is then again applied, cutting the background lto greater depth and giving it a vai'iegiited effect as shown in dotted lines iii Fig. 7, and also as illustrated in Fig. 8.

The portions ofglue 14 are then removed from the face of the design and the finished work appears as shown in the upper righthand portion of Fig. `8. n

Having thus described the various steps of my improved process, it will be seen that I have achieved a greatlyy improved result in which the ligure has a contoured surface instead of a flat surface, `and in'whicli the background may be'either plain or variegated as desired. Furthermore, I have achieved this resultat a great saving of time and labor over the old method of producing such work entirely by hand labor.

'lio

Vith my improved method, the Work isV and this one hand operation has been very greatly simplified and expedited by providing the outline edge-cuts 12, as indicated in Figs. 3 and 3,

Having thus described my invention and the advantages thereof, I do not Wish to be limited to the details herein disclosed, other- Wise than as set forth in the claims, but

That I claim is:F

l. A method ot o rnamenting a surface ot granite or other similar material, which consists in coating the surface to be ornamented with a layer ot sand-resisting compound, steneilling the outline ot a desired tigure therein, sand-blasting the stencilled outline in the stone toa relatively slight depth, removing the compound 'from the gure Withinv the sand-blasted outline shaping the exposed surface of the figure to a desired contour, re-surfacing the contoured figure with compound, removing the compound from the background of the design, and sand-blasting the background to a desired depth.

2j A method of ornamenting a surface of granite or other similar material, which consists in coating the surface to be ornamented with a layer of sand-resisting compound, stencilling the outline of a desired figure therein, sand-blasting the stencilled outline in the stone to a relatively slight depth, removing the compound from the figure Ywithin the sand-blasted outline, shaping the eX- posed surface of the figure to a desired contour, resurfacing the contoured figure with compound, re-stencilling the figure, removing the compound from the background of the design, and Sandblasting the background to a desired depth.

A method of ornamenting a surface of granite or other similar material, which consists in coating the surface to be ornamented with a. layer of' sand-resisting compound, stencililing the outline of a desired iigure therein, Sandblasting the stencilled outline in the stone to a relatively slight depth, removing the compound from the figure within the sand-blasted outline,`shaping the ex posed surface of the ligure to a desired contour, re-surfacing the contoured figure with compound, re-stencilling the ligure, sandblasting the stencilled lines to a substantial depth, removing the compound from the background ot the design, sand-blasting the background to a desired depth, inserting a perforated screen in the path of the sandblast, and completing the' through said screen.

4. A method of ornamenting a surface of granit-e or other similar material, Which consists lin coating the surface to be ornamented with a. layer of sandresisting compound, stencilling the outline, of a desired figure therein, sand-blasting the stencilled outline in the stone to a` relatively slight'depth, removing thecompound from the figure Within the sand-blasted outline, applying a hand tool to shape the exposed and outlinedl surface of the figure to a desired contour, resurfacing theicontouredA vfigure with com pound, removing the compound from the background of the design, and sand-blasting the background to a desired depth.

In testimony whereof I have hereunto aixed my signature.

minor A. CHASE,

sand-blasting 

